-5457

Appears in sequences

• First row sum of the matrix M^n, where M is the 5 X 5 matrix {{0,-1,-1,-1,-1}, {-1,0,-1,-1,0}, {-1,-1,0,0,0}, {-1,-1,0,1,0}, {-1,0,0,0,1}}.at n=9A122174
• Numerator of Euler(n,2).at n=13A143074
• Second right hand column of the Beta triangle A160480.at n=14A160483
• a(n) = 2*a(n - 2) - a(n - 1) for n>1, a(0) = 4, a(1) = 5.at n=14A268741